//package com.ljxy.score.common;
//
//import cn.hutool.core.util.StrUtil;
//import com.auth0.jwt.JWT;
//import com.auth0.jwt.JWTVerifier;
//import com.auth0.jwt.algorithms.Algorithm;
//import com.auth0.jwt.exceptions.JWTDecodeException;
//import com.auth0.jwt.exceptions.JWTVerificationException;
//import com.baomidou.mybatisplus.core.toolkit.Wrappers;
//import com.ljxy.score.entity.User;
//import com.ljxy.score.exception.ServiceException;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.web.method.HandlerMethod;
//import org.springframework.web.servlet.HandlerInterceptor;
//
//import javax.servlet.http.HttpServletRequest;
//import javax.servlet.http.HttpServletResponse;
//
///**
// * @author SuSheng
// * @date 2022/3/28 14:58
// */
//
//public class JwtInterceptor implements HandlerInterceptor {
//
//    @Autowired
//    UserService userService;
//
//    @Override
//    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) {
////        获取请求头的token
//        String token = request.getHeader("token");
////        如果不是映射到方法直接通过
//        if (!(handler instanceof HandlerMethod)) {
//            return true;
//        }
////        执行认证
//        if (StrUtil.isBlank(token)) {
//            throw new ServiceException(Constants.CODE_401, "无token，请重新登录");
//        }
//        String userId;
//        try {
//            userId = JWT.decode(token).getAudience().get(0);
//        } catch (JWTDecodeException e) {
//            throw new ServiceException(Constants.CODE_401, "token验证失败");
//        }
////        根据token中的userid查询数据库
//        User user = userService.getOne(Wrappers.<User>lambdaQuery().eq(User::getAccount, userId));
//        if (user == null) {
//            throw new ServiceException(Constants.CODE_401, "用户不存在,请重新登录");
//        }
////        验证token
//        JWTVerifier jwtVerifier = JWT.require(Algorithm.HMAC256(user.getPassword())).build();
//        try {
//            jwtVerifier.verify(token);
//        } catch (JWTVerificationException e) {
//            throw new ServiceException(Constants.CODE_401, "token验证失败");
//        }
//        return true;
//    }
//}
